International Laser Ranging Service

SLR Global Performance Report Card

August 1, 2011 through July 31, 2012

The performance report card is divided into three tables for readability. Table 1 contains performance parameters based on data volume, on-site processing statistics and operational compliance issues. Table 1 L contains information about Lunar Laser Ranging during the past year. Table 2 contains performance parameters based on various Analysis Centers' rapid orbital analysis results.

Below are the detailed descriptions of each column in Table 1 plots of the columns are linked in this description and in Table 1:

• Column 1 is the station location name.
• Column 2 is the monument marker number.
• Column 3 is the LEO pass total during the past 12 months.
• Column 4 is the LAGEOS pass total during the past 12 months.
• Column 5 is the high satellite pass total during the past 12 months.
• Column 6 is the pass total (i.e., all satellites) during the past 12 months.
• Column 7 is the LEO NP total during the past 12 months.
• Column 8 is the LAGEOS NP total during the past 12 months.
• Column 9 is the high satellite NP total during the past 12 months.
• Column 10 is the NP total (i.e., all satellites) during the past 12 months.
• Column 11 is the total tracking minutes (i.e., all satellites) during the past 12 months. This is computed by the summation of the number of normal points multiplied by its bin size in minutes.
• Column 12 is the average single-shot calibration RMS, in millimeters, during the last quarter.
• Column 13 is the average single-shot Starlette RMS, in millimeters, during the last quarter.
• Column 14 is the average single-shot LAGEOS RMS, in millimeters, during the last quarter.

The first entry in each table is for the performance baseline goal. Note: There are no baseline goals for NP data quantities, single shot RMS's.

Additional Notes: Blanks in any columns implies either that there was no data or that there was insufficient data. Only stations that have supplied data within the last year are included in the table. The table is sorted in descending order by total passes.

Table 1

Site Information		Data Volume									Data Quality
Column 1	2	3	4	5	6	7	8	9	10	11	12	13	14
Location	Station Number	LEO pass Tot	LAGEOS pass Tot	High pass Tot	Total passes	LEO NP Total	LAGEOS NP Total	High NP Total	Total NP	Minutes of Data	Cal. RMS	Star RMS	LAG RMS
Baseline		1000	400	100	1500
Yarragadee	7090	11179	2049	5782	19010	189005	24040	26729	239774	190248	5.9	7.9	9.4
Zimmerwald_532	7810	8641	1544	5543	15728	151152	23471	30220	204843	198694	4.4	8.6	10.9
Matera_MLRO	7941	4717	1545	1943	8205	60725	15963	11043	87731	94180	1.3	3.2	5.1
Graz	7839	4452	748	2809	8009	74710	6079	16610	97399	89696	2.5	3.7	5.1
Greenbelt	7105	5948	818	1007	7773	108035	7421	4487	119943	71854	8.7	8.8	10.4
Changchun	7237	4720	638	2009	7367	43506	3705	8398	55609	41549	10.2	12.4	15.5
Wettzell	8834	4385	799	1177	6361	44789	5645	5524	55958	47510	5.9	11.1	14.3
Mount_Stromlo_2	7825	4916	829	478	6223	65049	7316	2304	74669	57693	3.5	5.5	7.8
Herstmonceux	7840	3338	730	1913	5981	47430	8267	6594	62291	56400	5.5	9.5	10.1
San_Juan	7406	3564	757	1286	5607	78494	13837	13839	106170	89861	5.7	10.1	8.8
Monument_Peak	7110	3297	772	731	4800	58008	7832	3443	69283	53023	8.0	12.5	14.9
Hartebeesthoek	7501	3173	850	624	4647	46017	9395	3660	59072	52093	5.6	10.6	12.4
Potsdam_3	7841	2849	432	171	3452	48003	4657	1342	54002	31964	7.7	12.9	14.9
San_Fernando	7824	2996	245	19	3260	35418	1077	53	36548	19495	6.0	14.1	15.9
Arequipa	7403	2664	373		3037	35217	2807		38024	25428	5.2	11.7	9.9
Haleakala	7119	2225	607		2832	36920	6658		43578	34397	4.1	9.2	11.8
Concepcion_847	7405	1628	715	394	2737	17092	7770	2559	27421	35057	6.8	16.2	16.8
Katzively	1893	1794	333	335	2462	30612	3073	2845	36530	26482	32.6	68.2	37.1
Grasse_MEO	7845	893	521	670	2084	28184	6149	3042	37375	29936	12.2	16.5	17.9
Simosato	7838	1069	429	185	1683	29591	10623	1948	42162	44319	5.5	8.4	9.9
Shanghai_2	7821	967	193	474	1634	9143	991	2053	12187	11189	4.5	9.5	11.6
McDonald	7080	911	402	213	1526	9260	3145	846	13251	13927	6.6	11.5	12.8
Riga	1884	1208	146	2	1356	20381	1211	14	21606	11547	10.2	13.2	14.0
Simeiz	1873	992	293	67	1352	12097	2153	408	14658	10644		51.1	45.4
Kiev	1824	1065	199	75	1339	7781	903	221	8905	6393	14.2	13.3	12.7
Altay	1879	241	347	733	1321	2122	2155	2431	6708	10785			12.6
Papeete	7124	712	243	108	1063	12085	2905	446	15436	12727	7.2	8.3	9.2
Koganei	7308	450	189	362	1001	5726	1396	2772	9894	13102	8.7	10.4	14.5
Beijing	7249	450	84	89	623	9191	1140	879	11210	9345	8.2	13.3	17.3
Komsomolsk	1868	37	138	338	513	260	848	924	2032	3735			10.8
Badary	1890	342	82	44	468	5766	898	202	6866	6015		41.0	42.7
Zelenchukskya	1889	111	75	183	369	1679	531	776	2986	2865		21.9	25.6
Baikonur	1887	103	144	34	281	767	1030	99	1896	3857		13.4	13.3
Tanegashima	7358	241	13	23	277	2445	60	397	2902	2975	1.4
Arkhyz	1886	81	88	97	266	833	859	467	2159	4414		17.0	17.2
Svetloe	1888	99	62	13	174	1074	361	43	1478	1718			35.3
FTLRS_Tahiti	7822	69	16		85	1317	141		1458	726
Helwan	7831	2			2	12			12	6
Koganei	7328	1			1	5			5	1

 

 

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Below are the detailed descriptions of each column in Table 1 L:

• the first column, L1, is the station location name.
• the second column, L2, is the monument marker number.
• the third column, L3, is the number of nights during the past 12 months in which there were Lunar ranging measurements
• the fourth column, L4, is the number of Lunar Laser Ranging normal points during the past 12 months
• the fifth column, L5, is the number of Lunar Laser Ranging normal points during the past 3 months
• the sixth column, L6, is the average Lunar Laser Ranging normal points rms 3 months in mm

 

Table 1 L

Site Information		Data Information
Column L1	L2	L3	L4	L5	L6
Location	Station Number	num nights tracking last 12 mon	num npt last 12 mon	num npts last 3 mon	ave npt rms last 3 mon
McDonald	7080	8	17
Matera_MLRO	7941	4	7	3
Grasse_MEO	7845	1	7

 

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Below are the detailed descriptions of each column in Table 2:

• the first column is the station location name.
• the second column is the monument marker number.
• following columns are in grouped by analysis center with four columns for each
• the first AC column is the average LAGEOS normal point RMS, in millimeters, during the last quarter
• the second AC column is the measure of short term bias stability, in millimeters, during the last quarter. The short term stability is computed as the standard deviation about the mean of the pass-by-pass range biases (minimum number of passes in quarter is 10)
• the third AC column is the measure of long term bias stability, in millimeters, during the past year. The long term stability is the standard deviation of the monthly range bias estimates. A station must have tracked LAGEOS (1,2) in at least 8 of the last 12 months in order to compute this metric.
• the fourth AC column is the percentage of LAGEOS normal points that were accepted in the analysis.

The first entry in each table is for the performance baseline goal.

Additional Notes: Blanks in any columns implies either that there was no data or that there was insufficient data. Only stations that have supplied data within the last year are included in the table. The table is sorted in descending order by total data volume.

 

Table 2

Site Information		DGFI Orbital Analysis				Hitotsubashi Univ. Orbital Analysis				JCET Orbital Analysis				MCC Orbital Analysis				SHAO Orbital Analysis
Station Location	Station Number	LAG NP RMS (mm)	short term (mm)	long term (mm)	% good LAG. NP	LAG NP RMS (mm)	short term (mm)	long term (mm)	% good LAG. NP	LAG NP RMS (mm)	short term (mm)	long term (mm)	% good LAG. NP	LAG NP RMS (mm)	short term (mm)	long term (mm)	% good LAG. NP	LAG NP RMS (mm)	short term (mm)	long term (mm)	% good LAG. NP
Baseline		10.0	20.0	10.0	95	10.0	20.0	10.0	95	10.0	20.0	10.0	95	10.0	20.0	10.0	95	10.0	20.0	10.0	95
Yarragadee	7090	3.9	22.6		100.0	1.7	9.0	1.2	100.0	3.0	12.7	3.1	98.9	2.2	16.2	1.9	98.3	1.4	11.8	2.7	92.8
Zimmerwald_532	7810	3.0	18.7		99.9	1.3	6.7	1.5	99.9	2.0	10.2	4.1	99.9	2.3	14.9	2.8	98.1	1.3	9.7	3.3	95.2
Matera_MLRO	7941	3.2	19.5		99.9	1.3	9.1	1.0	99.9	2.0	14.0	5.4	99.8	2.0	16.5	4.2	99.5	2.0	33.9	7.1	97.8
Graz	7839	2.2	15.6		100.0	1.1	6.4	1.8	100.0	1.4	8.7	6.6	99.6	1.8	12.4	2.6	97.4	0.7	10.9	5.9	96.5
Greenbelt	7105	4.6	23.6		99.0	3.0	10.5	2.8	99.5	3.4	13.1	3.7	98.5	6.0	14.0	6.0	97.5	2.3	12.8	4.5	92.3
Changchun	7237	5.8	36.3		99.3	3.2	28.7	12.0	98.8	2.4	27.7	10.8	96.3	4.7	30.2	13.9	94.2	2.7	26.9	13.4	95.3
Wettzell	8834	3.1	18.1		100.0	2.0	8.7	3.2	100.0	2.1	13.1	4.6	99.8	2.0	14.2	4.3	98.5	1.2	12.2	3.0	93.5
Mount_Stromlo_2	7825	4.5	23.8		99.6	2.7	10.7	3.5	100.0	4.3	14.6	11.9	99.0	3.5	14.1	5.3	96.4	2.5	12.8	5.0	94.6
Herstmonceux	7840	3.2	12.7		100.0	1.6	5.9	1.2	100.0	1.9	12.8	4.6	99.9	2.6	10.9	2.2	97.3	1.3	9.7	5.2	94.3
San_Juan	7406	9.1	35.4		99.7	4.2	31.3	15.0	99.5	5.4	33.3	11.0	91.3	4.6	23.6	8.1	97.0	3.6	31.8	11.4	93.2
Monument_Peak	7110	5.4	24.8		99.9	2.4	18.6	21.8	99.9	4.7	24.3	5.5	97.2	2.8	19.8	15.3	97.0	2.4	17.1	6.3	92.7
Hartebeesthoek	7501	4.1	20.4		99.7	2.1	13.0	16.8	99.9	3.3	15.8	15.6	98.9	2.4	20.6	14.7	98.3	1.8	17.4	24.3	92.5
Potsdam_3	7841	4.5	18.6		99.6	2.1	7.2	4.1	99.7	3.0	14.4	4.4	98.9	2.4	11.8	5.0	96.8
San_Fernando	7824	6.2	24.9		100.0	4.5	11.3	8.7	100.0	3.6	17.9	10.8	98.0	4.0	18.8	11.0	98.7	3.1	27.0	13.1	98.6
Arequipa	7403	8.3	36.0		99.3	2.1	25.0		99.6	4.9	23.9		97.9	3.1	16.2		96.8	1.6	13.7		91.8
Haleakala	7119	4.2	25.7		99.7	2.2	11.9	3.3	99.5	3.0	11.2	4.6	98.3	3.4	28.6	8.1	98.3
Concepcion_847	7405	5.3	30.6		100.0	1.7	39.8	2.9	100.0					2.3	34.4	6.5	99.9
Katzively	1893	13.1	27.8		98.5	8.5	20.2	6.9	97.1	6.6	13.2	6.0	84.2	8.0	15.4	11.5	89.5	7.8	14.8	9.3	98.9
Grasse_MEO	7845	4.6	20.0		100.0	3.0	11.8	17.1	100.0	4.0	12.9	8.0	99.5	3.0	15.0	9.6	96.4	3.0	17.5	6.9	94.2
Simosato	7838	8.7	30.9		100.0	3.1	16.2	12.2	99.5	5.2	18.5	12.7	97.0	4.6	24.3	12.1	99.8	4.4	16.1	11.1	95.4
Shanghai_2	7821	3.0	25.7		100.0	1.5	16.2	13.3	99.3	1.7	16.1	11.5	91.5	4.4	20.5	16.2	95.2	1.2	27.0	14.1	80.9
McDonald	7080	5.1	26.3		99.3	2.9	11.8	5.6	99.8	3.8	11.3	4.1	99.2	3.1	18.9	8.7	95.9	2.0	15.4	5.8	92.5
Simeiz	1873	47.7	41.2		62.3	70.1	48.4	15.3	97.9					50.5	45.6	26.6	82.6
Altay	1879	17.6	60.4		95.8									5.3	45.6	27.6	97.5
Papeete	7124	4.1	15.6		99.8	1.9	10.4	3.1	100.0	2.8	15.1	6.4	99.6	2.7	17.4	5.3	100.0	7.5	15.9		94.0
Koganei	7308													6.1	51.9	37.7	98.5
Beijing	7249	18.9	29.8		100.0	6.6	29.2		100.0	4.7	29.4		93.6	6.7	29.1		98.1
Baikonur	1887	13.6	45.1		99.8					6.5	38.1		81.3	7.0	26.0	7.4	93.1
Arkhyz	1886	14.3	23.4		100.0	11.4	14.8		100.0